544430253421 has 8 divisors (see below), whose sum is σ = 553555562624. Its totient is φ = 535350008160.

The previous prime is 544430253379. The next prime is 544430253439. The reversal of 544430253421 is 124352034445.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 544430253421 - 2³¹ = 542282769773 is a prime.

It is a super-5 number, since 5×544430253421⁵ (a number of 60 digits) contains 55555 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (544430253461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11241621 + ... + 11289946.

It is an arithmetic number, because the mean of its divisors is an integer number (69194445328).

Almost surely, 2^544430253421 is an apocalyptic number.

It is an amenable number.

544430253421 is a deficient number, since it is larger than the sum of its proper divisors (9125309203).

544430253421 is a wasteful number, since it uses less digits than its factorization.

544430253421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22531971.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 544430253421 its reverse (124352034445), we get a palindrome (668782287866).

The spelling of 544430253421 in words is "five hundred forty-four billion, four hundred thirty million, two hundred fifty-three thousand, four hundred twenty-one".